– 0 customers out in Maryland
Power outage history
Maryland
3.5hours
without power for the average customer in a typical year, 2018–2025. 38th of 51.
Electricity customers 2,656,350 Across 24 counties
Worst well-recorded year 2022 5.4 hours without power, average customer
County by county
Where Maryland goes dark
Hours without power for the average customer in a typical year. Hover a county; click to open it.
Fewer hours64+ h / yr
Year by year
Hours in the dark, statewide
The record
Maryland's largest outages
Statewide events with at least 2% of customers, or 25,000, out at once, by peak.
| Began | Storm | Peak out | Share |
|---|---|---|---|
| Mar 2, 2018 | Windstorm | 294,465 | 11.1% |
| Jul 12, 2022 | Thunderstorms | 200,965 | 7.6% |
| Feb 16, 2025 | Windstorm | 142,975 | 5.4% |
| Jul 29, 2023 | Thunderstorms | 136,397 | 5.1% |
| Aug 7, 2023 | Thunderstorms | 133,771 | 5.0% |
| Aug 4, 2020 | Hurricane Isaias | 115,431 | 4.3% |
| Jun 19, 2025 | Thunderstorms | 115,290 | 4.3% |
| May 16, 2025 | Thunderstorms | 110,650 | 4.2% |
| Dec 23, 2022 | Winter storm | 97,863 | 3.7% |
| Nov 27, 2022 | Thunderstorms | 96,963 | 3.6% |
| Jun 23, 2015 | Thunderstorms | 95,215 | 3.6% |
| Jan 3, 2022 | Winter storm | 79,523 | 3.0% |
| Mar 5, 2018 | No storm report | 61,978 | 2.3% |
| Jul 1, 2021 | Thunderstorms | 60,716 | 2.3% |
| Jan 9, 2024 | Flooding | 58,328 | 2.2% |
| Apr 1, 2023 | Windstorm | 57,139 | 2.1% |
| Nov 1, 2019 | Thunderstorms | 56,015 | 2.1% |
| Aug 4, 2022 | Thunderstorms | 55,704 | 2.1% |
Every county
All 24 counties
| County | Hours / yr | Major outages since 2018 | Customers |
|---|---|---|---|
| Garrett | 13 | 48 | 13,588 |
| Allegany | 7.4 | 18 | 32,504 |
| Carroll | 6.4 | 4 | 71,073 |
| Calvert | 4.8 | 16 | 39,458 |
| Cecil | 4.8 | 13 | 57,202 |
| Harford | 4.7 | 6 | 112,536 |
| St. Mary's | 4.5 | 18 | 55,898 |
| Charles | 4.3 | 6 | 73,494 |
| Baltimore | 4.2 | 4 | 370,224 |
| Baltimore | 3.8 | 1 | 277,924 |
| Washington | 3.5 | 2 | 65,276 |
| Prince George's | 3.2 | 2 | 349,773 |
| Anne Arundel | 3.1 | 3 | 253,751 |
| Worcester | 3.0 | 22 | 31,542 |
| Montgomery | 2.8 | 3 | 395,748 |
| Frederick | 2.6 | 0 | 132,173 |
| Kent | 2.5 | 15 | 10,903 |
| Somerset | 2.4 | 11 | 14,318 |
| Howard | 2.3 | 3 | 146,094 |
| Dorchester | 2.2 | 10 | 18,093 |
| Queen Anne's | 2.1 | 5 | 26,465 |
| Caroline | 1.9 | 7 | 17,587 |
| Wicomico | 1.4 | 3 | 61,546 |
| Talbot | 1.2 | 2 | 29,180 |
Who keeps the lights on
Utilities in Maryland
Reliability and residential price as reported to the EIA for the latest year. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | ¢/kWh | Customers |
|---|---|---|---|---|---|
| Baltimore Gas & Electric Co | Investor Owned | 175 | 65 | 20.2 | 1.2M |
| Potomac Electric Power Co | Investor Owned | 104 | 54 | 21.7 | 559k |
| The Potomac Edison Company | Investor Owned | 399 | 174 | 15.4 | 259k |
| Delmarva Power | Investor Owned | 114 | 66 | 21.8 | 188k |
| Southern Maryland Elec Coop Inc | Cooperative | 173 | 118 | 16.4 | 163k |
| Choptank Electric Cooperative, Inc | Cooperative | 217 | 121 | 17.1 | 51k |
| Tesla Inc. | Behind the Meter | – | – | 16.1 | 27k |
| Sunrun Inc. | Behind the Meter | – | – | 19.5 | 26k |
| Hagerstown Light Department | Municipal | – | – | 11.2 | 15k |
| Easton Utilities Comm | Municipal | 31 | 21 | 15.2 | 8.9k |